#include <iostream>

using namespace std;

const int N = 1e5 + 10;
int a[N][N];
int f[N][N];
int n, m, q; 
int ret;

int main()
{
    cin >> n >> m >> q;
    for(int i = 1; i <= n; i++)
    {
        for(int j = 1; j <= m; j++)
        {
            cin >> a[i][j];
            f[i][j] = f[i - 1][j] + f[i][j - 1] - f[i - 1][j - 1] + a[i][j];
         
        }
    }

    while(q--)
    {
        int x1, x2, y1, y2; cin >> x1 >> x2 >> y1 >> y2;
        ret = f[x2][y2] - f[x2][y1 - 1] - f[x1 - 1][y2] + f[x1 - 1][y1 - 1];
        cout << ret << endl;
    }
    return 0;
}